I guess the answers are all either "god did it", or "you make up your own ending". the interviewer didn't bother to ask any important philosophical story questions, like why all the faith testing throughout the series, what was the point...I assume you just make up the answer for yourself on everything.

I'm going to make up that the God in the show had an IQ of about 65 and wasn't all knowing, wasn't all powerful. Oh look, now it all makes sense.

I can understand how, when you are first writing a new series, your focus is on making it interesting and sustainable so that it won't get dropped. Only after it's caught on would you start to think about where it's going, and also how to preserve the franchise (spinoffs!) It's all a matter of priority. However, I was a little disappointed to find out that they were actually angels and it was all some mystical god fixing all the loose ends.